Sales Demonstration Lock Function; Service Precautions; Handling After Completing Repairs - Yamaha DVD-S1200 Service Manual

DVD-S1200

6. Sales demonstration lock function

This function prevents discs from being lost when the unit is used for sales demonstrations by disabling the disc eject
function. "LOCKED" is displayed on the unit, and ordinary operation is disabled.
6.1. Setting
The sales demonstration lock is set by simultaneously pressing the " a a a a a " button on the player and the "POWER" button on
the remote control unit for a few second.
6.2. Cancellation
The lock can be cancelled by the same procedure as used in setting. "UNLOCKED" is displayed on cancellation.
(Disconnecting the power cable from the power outlet does not cancel the lock function.)

7. Service Precautions

7.1. Recovery after the dvd player is repaired
When a FROM or an EEPROM in and on the module P.C.B. has been replaced, carry out the recovery disc procedure to
optimize the drive.
Playback the disc above to perform the recovery automatically,
Recovery disc: RFKZD5TR001 (AAX27810)
Note:
This unit requires no initialization procedure carried out as when traditional DVD players were repaired.
When the recovery measures are taken, the customer setting will return to the factory setting and the player will be reset.
7.2. Firmware version-up of the DVD player
The firmware of the DVD player may be updated to improve the quality, including optimizing operationability and
playability with substandard discs.
The version-update disc also has a recovery function so that you don't need to use the recovery disc again.
Note:
If the AC power supply is lost during version-updating due to a power failure, the version-update is improperly carried out.
In such a case, replace the FROM and carry out the version-update again.
The product number of the version-update disc will be noticed when it is supplied.

8. Handling After Completing Repairs

Use the following procedure after completing repairs.
8.1. Method
Confirm that the power is turned on:
1. Press the "OPEN/CLOSE" button to close the tray.
2. Press the "POWER" button to turn off the power.
3. Disconnect the power plug from the outlet.
8.2. Precautions
Do not disconnect the power plug from the outlet with the tray still open, then close the tray manually.
17